"Everyone needs cats. Except Shepherds. But thankfully I don't think you're one in disguise." His voice is light enough, mostly to make sure she doesn't take that as him actually badmouthing Shepherds. Detlef does not care to be reported.

"If you're sure you don't need a cat, though, then you may just need human company. That could be me. I'm human, I'm company." Maybe she's nervous about being new and it's manifesting in aloofness. He doesn't know enough to say yet - part of the reason he's sticking around.